Looks like Ol' Bubba is going to be out of pocket over the Frankentanker already:
The Boeing Company is projected to exceed its cost ceiling by as much as $300 million (about 6 percent) on the initial contract to develop and build U.S. Air Force aerial refueling tankers, according to US government officials.....
See
Boeing Projects About $300 Million Overrun on Tanker Contract - Bloomberg